We look at the division of 309596 by 85 
Our goal is to divide 309596 by 85.

Advancing to step 1:
3 divided by 85 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 85

Step 2:
If we divide 30 by 85, we get 0 and a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Append the next digit (9) from the dividend to 30 and continue with: 309 / 85

Step 3:
When dividing 309 by 85, we get 3 with a remainder of 54.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 255 from 309 and we're left with 54.
Take the next digit (5) from the dividend and append it to 54, then repeat: 545 / 85

Moving on to step 4:
The number 85 fits into 545 6 times, leaving a remainder of 35.
Use 6 as the next digit of our solution. 
Result so far: 36.0
Subtracting 510 from 545 leaves us with 35.
Take the next digit (9) from the dividend and append it to 35, then repeat: 359 / 85

Going ahead to step 5:
When dividing 359 by 85, we get 4 with a remainder of 19.
Use 4 as the next digit of our solution. 
Result so far: 364.0
If we subtract 340 from 359, we get 19.
Append the next digit (6) from the dividend to 19 and continue with: 196 / 85

On to step 6:
The number 85 fits into 196 2 times, leaving a remainder of 26.
The next digit of our result is 2. 
Result so far: 3642.0
If we take 170 away from 196, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 7:
If we divide 260 by 85, we get 3 and a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 3642.3
If we subtract 255 from 260, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 8:
50 divided by 85 is 0 with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 3642.3
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
500 divided by 85 is 5 with a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 3642.305
Deduct 425 from 500 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 10:
85 goes into 750 8 times with a remainder of 70.
Put 8 as the next digit of the answer. 
Result so far: 3642.3058
If we take 680 away from 750, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 11:
700 divided by 85 is 8 with a remainder of 20.
Record the quotient 8 as the next digit in the result. 
Result so far: 3642.30588
Subtract 680 from 700 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 3642.30588 and a remainder of 2e-05.